1. Institute of Translational Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
2. Department of Urology, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, China
3. Reproductive Center of Medicine, The First Affiliated Hospital of University of South China, Hengyang, Hunan 421001, China
4. Department of General Practice, The Fifth Affiliated Hospital of Southern Medical University, Guangzhou, Guangdong, China